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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL Informix® database servers.
Administrator's GuideThe Informix® Administrator's Guide provides the information required to administer HCL Informix®.
High availability and scalabilityA successful production environment requires database systems that are always available, with minimal if any planned outages, and that can be scaled quickly and easily as business requirements change.
High-availability cluster configuration
Configuring clustersConfigure clusters by securing confirming the hardware, operating-system, and database requirements. You also set up a security protocol and the secure connection.
Database server configuration requirements for clusters
Dbspace and logical-log tape backup devices

Dbspace and logical-log tape backup devices

You can specify different tape devices for the primary and secondary database servers.

If you use ON-Bar, set the ON-Bar configuration parameters to the same value on both database servers. For information about the ON-Bar parameters, see the Informix® Backup and Restore Guide.

If you use ontape, the tape size and tape block size for the storage-space and logical-log backup devices must be identical. The following ONCONFIG parameters must have the same value on each database server:

LTAPEBLK
LTAPESIZE
TAPEBLK
TAPESIZE

To use a tape to its full physical capacity, set LTAPESIZE and TAPESIZE to 0.

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